Search Results

You are looking at 1 - 7 of 7 items for

  • Author or Editor: R. Shen x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract  

We define and study complete generalized neighborhood systems, and prove that a generalized neighborhood system is complete if and only if it can be generated by a generalized topology. Also we obtain some applications of complete generalized neighborhood systems.

Restricted access

Abstract  

We study the relationship between the product and other basic operations (namely σ, π, α and β) of generalized topologies. Also we discuss the connectedness, generalized connectedness and compactness of products of generalized topologies. It is proved that the connectedness and compactness are preserved under the product of generalized topologies, which shows that the definition of product of generalized topologies is quite reasonable.

Restricted access

Abstract  

This note is devoted to study the preservation of connectedness under the basic operators in generalized topological spaces. Some characterizations of generalized connectedness are given. As an application, we generalize some results in topological spaces.

Restricted access

Abstract  

In a recent paper [3], D. Buhagiar and B. A. Pasynkov introduced the notion of a supercomplete space and established an internal characterization of these spaces. It is clear that the proof of this characterization actually characterizes c-
\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \usepackage{bbm} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $$\mathcal{U}$$ \end{document}
-supercomplete spaces. In this short note we state the correct formulation and give a counterexample.
Restricted access

Abstract  

A worldwide radionuclide network of 80 stations, including 40 with noble-gas-detection capability forming part of the International Monitoring System, has been designed to monitor compliance with the Comprehensive Nuclear-Test-Ban Treaty. Pending entry into force of the Treaty, the certified stations are operating provisionally and so far an experience of over 100 station-years has been acquired for particulate stations. Noble gas systems are still under testing, though the operational experience is fast growing. A maintenance strategy is being developed on the basis of the experience acquired so far and the analysis of equipment failure.

Restricted access

Abstract  

A 18-mer partial phosphorothioate oligonucleotide sequence was synthesized and grafted in 5′ with a tyramine group which was further radioiodinated. The Namalwa (VH 1 family) and HL-60 cell lines were transducted with liposome-mediated 125I-FR1-ASON. Liposome-mediated 131I-FR1-ASON and 131I labeled sense oligonucleotides were injected intratumorally into tumor-bearing BALB/c mice (6 weeks after inoculation of 107 Namalwa cells). Biodistribution was monitored by sequential scintigraphy and organ radioactivity measurement at 24 hours after injection. The transduction efficiency in Namalwa cell lines reached (26.8±1.54)% that was higher than HL-60 cell lines. Antisense probe images show tracer accumulation in tumor.

Restricted access

Abstract  

In the present report, thermal analysis (TMDSC, DMA, TG, stress-strain analysis), nano-indentation and AFM morphological characterization of cross-linkable latexes, prepared with either a pre-coalescence cross-linker (1,3-butylene glycol dimethacrylate) or post-coalescence cross-linker (adipic dihydrazide) at various levels of cross-linking, were done. The study assesses the effect of type and level of cross-linking on the film formation process through the evolution of mechanical properties and latex morphology. In addition, the final fundamental thermal and mechanical properties, specific end-use properties and latex morphology resulting from the film formation process are reported.

Restricted access